"Pure water can be obtained by using a reverse osmosis filter, the gold standard of home water treatment, but for Mr. Singh, the goal is not pristine water, per se. 'You’re going to get 99 percent of the bad stuff out,' he said. 'But now you have dead water.'

He said 'real water' should expire after a few months. His does. 'It stays most fresh within one lunar cycle of delivery,' he said. 'If it sits around too long, it’ll turn green. People don’t even realize that because all their water’s dead, so they never see it turn green.'

Mr. Singh believes that public water has been poisoned. 'Tap water? You’re drinking toilet water with birth control drugs in them,' he said. 'Chloramine, and on top of that they’re putting in fluoride. Call me a conspiracy theorist, but it’s a mind-control drug...' "